From: Corentin Labbe Subject: [PATCH v2 6/6] crypto: stm32-cryp: convert to the new crypto engine API Date: Fri, 26 Jan 2018 20:15:34 +0100 Message-ID: <20180126191534.17569-7-clabbe.montjoie@gmail.com> References: <20180126191534.17569-1-clabbe.montjoie@gmail.com> Cc: linux-arm-kernel@lists.infradead.org, linux-crypto@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, virtualization@lists.linux-foundation.org, linux-sunxi@googlegroups.com, Corentin Labbe To: alexandre.torgue@st.com, arei.gonglei@huawei.com, corbet@lwn.net, davem@davemloft.net, herbert@gondor.apana.org.au, jasowang@redhat.com, mcoquelin.stm32@gmail.com, mst@redhat.com, fabien.dessenne@st.com Return-path: In-Reply-To: <20180126191534.17569-1-clabbe.montjoie@gmail.com> Sender: linux-kernel-owner@vger.kernel.org List-Id: linux-crypto.vger.kernel.org This patch convert the stm32-cryp driver to the new crypto engine API. Signed-off-by: Corentin Labbe Tested-by: Fabien Dessenne --- drivers/crypto/stm32/stm32-cryp.c | 29 +++++++++++++++++++++-------- 1 file changed, 21 insertions(+), 8 deletions(-) diff --git a/drivers/crypto/stm32/stm32-cryp.c b/drivers/crypto/stm32/stm32-cryp.c index cf1dddbeaa2c..a816b2ffcaad 100644 --- a/drivers/crypto/stm32/stm32-cryp.c +++ b/drivers/crypto/stm32/stm32-cryp.c @@ -91,6 +91,7 @@ #define _walked_out (cryp->out_walk.offset - cryp->out_sg->offset) struct stm32_cryp_ctx { + struct crypto_engine_ctx enginectx; struct stm32_cryp *cryp; int keylen; u32 key[AES_KEYSIZE_256 / sizeof(u32)]; @@ -478,7 +479,7 @@ static void stm32_cryp_finish_req(struct stm32_cryp *cryp) free_pages((unsigned long)buf_out, pages); } - crypto_finalize_cipher_request(cryp->engine, cryp->req, err); + crypto_finalize_ablkcipher_request(cryp->engine, cryp->req, err); cryp->req = NULL; memset(cryp->ctx->key, 0, cryp->ctx->keylen); @@ -494,10 +495,19 @@ static int stm32_cryp_cpu_start(struct stm32_cryp *cryp) return 0; } +static int stm32_cryp_cipher_one_req(struct crypto_engine *engine, void *areq); +static int stm32_cryp_prepare_cipher_req(struct crypto_engine *engine, + void *areq); + static int stm32_cryp_cra_init(struct crypto_tfm *tfm) { + struct stm32_cryp_ctx *ctx = crypto_tfm_ctx(tfm); + tfm->crt_ablkcipher.reqsize = sizeof(struct stm32_cryp_reqctx); + ctx->enginectx.op.do_one_request = stm32_cryp_cipher_one_req; + ctx->enginectx.op.prepare_request = stm32_cryp_prepare_cipher_req; + ctx->enginectx.op.unprepare_request = NULL; return 0; } @@ -513,7 +523,7 @@ static int stm32_cryp_crypt(struct ablkcipher_request *req, unsigned long mode) rctx->mode = mode; - return crypto_transfer_cipher_request_to_engine(cryp->engine, req); + return crypto_transfer_ablkcipher_request_to_engine(cryp->engine, req); } static int stm32_cryp_setkey(struct crypto_ablkcipher *tfm, const u8 *key, @@ -695,14 +705,20 @@ static int stm32_cryp_prepare_req(struct crypto_engine *engine, } static int stm32_cryp_prepare_cipher_req(struct crypto_engine *engine, - struct ablkcipher_request *req) + void *areq) { + struct ablkcipher_request *req = container_of(areq, + struct ablkcipher_request, + base); + return stm32_cryp_prepare_req(engine, req); } -static int stm32_cryp_cipher_one_req(struct crypto_engine *engine, - struct ablkcipher_request *req) +static int stm32_cryp_cipher_one_req(struct crypto_engine *engine, void *areq) { + struct ablkcipher_request *req = container_of(areq, + struct ablkcipher_request, + base); struct stm32_cryp_ctx *ctx = crypto_ablkcipher_ctx( crypto_ablkcipher_reqtfm(req)); struct stm32_cryp *cryp = ctx->cryp; @@ -1104,9 +1120,6 @@ static int stm32_cryp_probe(struct platform_device *pdev) goto err_engine1; } - cryp->engine->prepare_cipher_request = stm32_cryp_prepare_cipher_req; - cryp->engine->cipher_one_request = stm32_cryp_cipher_one_req; - ret = crypto_engine_start(cryp->engine); if (ret) { dev_err(dev, "Could not start crypto engine\n"); -- 2.13.6